How many carbs are in a McDonald's Large French Fries?
A 1 large (150g) serving of McDonald's Large French Fries contains 66g of total carbs (60g net carbs), 0g sugar, 480 calories, 7g protein, 23g fat and 6g fiber.
- Calories
- 480 cal
- Carbohydrates
- 66 g
- of which Sugars
- 0 g
- Fiber
- 6 g
- Net carbs
- 60 g
- Protein
- 7 g
- Fat
- 23 g
McDonald's Large French Fries nutrition at a glance
Per 1 large (150g), McDonald's Large French Fries delivers about 24% of a 2,000-calorie daily reference, 24% of the 275g daily carbohydrate reference and 21% of the 28g daily fiber reference. Sugar sits at 0% of the 50g added-sugar reference and protein contributes 14% of the 50g protein reference.
- Calories
- 320
- Carbs
- 44 g
- Sugar
- 0 g
- Protein
- 4.7 g
- Fat
- 15.3 g
- Fiber
- 4 g
Blood-sugar impact of McDonald's Large French Fries
The fiber content slows glucose absorption, so the real glycemic impact is lower than the raw carb count suggests. A good option for steady energy.
With 66g total carbs and 6g fiber, the net-carb figure for a 1 large (150g) serving works out to roughly 60g — this is the number most keto and low-carb tracking apps use. If you're managing type 2 diabetes, pre-diabetes or reactive hypoglycemia, use total carbs for insulin dosing calculations and treat net carbs as a rough guide for meal planning.
Ways to eat McDonald's Large French Fries
- Treat mcdonald's large french fries as your main carb source for the meal — skip additional bread, rice or pasta on the side.
- Split a full serving of mcdonald's large french fries into two smaller portions to keep post-meal glucose steadier.
- Pair mcdonald's large french fries with 20–30g of protein and some healthy fat to flatten the blood-sugar response.
Frequently asked questions
Is McDonald's Large French Fries keto-friendly?
Not really. 60g net carbs per 1 large (150g) exceeds a full-day keto allowance for most people. It's a much better fit for a low-carb (100–150g/day) or balanced plan.
How many carbs in McDonald's Large French Fries per 100 grams?
About 44g of carbs, 0g sugar and 320 calories per 100g of McDonald's Large French Fries.
How does McDonald's Large French Fries affect blood sugar?
The fiber content slows glucose absorption, so the real glycemic impact is lower than the raw carb count suggests. A good option for steady energy.
Is McDonald's Large French Fries good for weight loss?
A serving delivers 480 calories with 7g protein and 6g fiber. Foods that are relatively high in protein and fiber per calorie tend to be more filling — with a 3% combined protein-plus-fiber-to-calorie ratio, McDonald's Large French Fries is best paired with a lean protein or vegetables so the meal keeps you full for longer.
Snap a photo with Carb Lens and get instant carbs, sugar and blood-sugar impact for anything on your plate — free.
Open scannerSources & how these numbers are calculated
Nutrition values are consensus averages compiled from the USDA FoodData Central database for a typical 1 large (150g) serving of McDonald's Large French Fries. Actual values vary with brand, variety, ripeness and preparation — always check the label on packaged products. Daily-value percentages reference the U.S. FDA 2,000-calorie adult reference (275g carbs, 50g added sugar, 50g protein, 78g fat, 28g fiber).
Content reviewed by Carb Lens editorial. Read our editorial policy for how we source, review and update food data.